plan to do 5 coats of DO. does it need to sand down in between coats. i understand its better adhesion but my worries is that everytime it dries, theres a lot of specks of dust in it. what grit would you recommend ti remove the dust?
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Replies
Danish oil
http://www.popularwoodworking.com/techniques/finishing/oil-finishes-their-history-and-use
The link above should answer most of your questions - but not knowing what the item is that you're working on - I don't want to steer you wrong. I'm not too enthused about that many coats of danish oil. Make sure all the finishing products are fresh and dispose of the rags safely when oil is an ingredient.
SA
Oil is great to bring out the natural beauty of the wood. It doesn't provide much protection. Even after applying 5 coats it's still not a hard finish and long drying times. I would put one coat of oil to bring out the wood grain followed by a good coat of clear finish. I think you'll do a lot better with wear during general use.
SA
that makes sense..
what would u recommend to apply for clear coat that wouldnt have adhesion issue over DO?
Clear finish
Almost any finish will adhere to the oil -- varnish, poly, shellac, laquer, etc. Just be sure the oil has had several days to fully cure before overcoating it as the uncured oil will soften the clear coat over time.
Adhesion
Varnish or poly will work. Both look similar when applied as wiping varnishes. The main difference is that varnish can be rubbed if needed.
Why not consider sticking with your plan to do an oil finish - it's easy to apply and easy to renew, but not meant to be a built up finish - that's why I was recommending a top coat with better solids. The rich look of an oil finish alone is beautiful - you won't regret it. Put just two coats of danish oil and I think there's no need to go further.
SA
You are not applying the Danish oil correctly if there is any dust adhereing to the surface. Proper application calls for a liberal amount of the Danish Oil (oil/varnish mixture) then letting it penetrate for a few minutes (say 20 minutes) and then VIGOROUSLY wiping off all of the oil that remains on the surface using dry rags or towels. (Be sure to dispose of this properly since it can spontaneously combust.) A couple of applications should be enough. More coats beyond that you won't be accomplishing anything. Leaving a film on the surface will result in a soft (almost gummy) surface that can attract dust. Danish Oil is not supposed to end up glossy, it is designed to be an "in-the-wood" finish that brings out the wood color, provides a dull satin sheen, and a modicum of protection from water stains and the like. For speakers it is likely to be enough protection unless you use them as tables on which to set drinks.
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